<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>HTML_DOM</title>
	</head>
	<body>
		<div id="div1">
			div
		</div>
		
		
		<script>
			var div = document.getElementById("div1");
			var innerHTML = div.innerHTML;
			//alert(innerHTML);
			
			//div标签中替换一个文本输入框
			//div.innerHTML = "<input type='text' />";
			//div标签中追加一个文本输入框
			div.innerHTML += "<input type='text' />";
		</script>
	</body>
</html>
